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Todd WFlag for United States of America

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Excel 2016 Time Avg Issue

i have some raw data that I'm trying to calculate avg time from stage to stage however running into issues with #VALUE!

Stage 1
Column A has date in format 01/01/2000
Column B has time in format hh:mm:ss
Column C had a formula which combines the two above columns (A and B) into 1 column.  =TEXT(A2,"mm/dd/yyyy")&" " &TEXT(B2,"hh:mm:ss")

Stage 2
Column D has date in format 01/01/2000
Column E has time in format hh:mm:ss
Column F has a formula which combines the two above columns (D and F) into 1 column. =TEXT(E2,"mm/dd/yyyy")&" " &TEXT(F2,"hh:mm:ss")

now here's where the problem comes in for me.  

Column G is where I need to determine the amount the amount of time difference between column C and column F.  A couple of caveats first.  Sometimes Column A/B/C will not have a time/date in them but D/E/F will.  when this happens, a #value! is displayed.

so through about 500 rows I need to determine the avg of time for column G.  Can't get it to work.  Always generates a #value!

So I'm either doing something wrong, or it's not possible to do with where dates are not all input.

I do have it set in a pivot table
I have tried filtering
I have tried conditional formatting

all to no avail.
Book1.xlsx
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Avatar of Subodh Tiwari (Neeraj)
Subodh Tiwari (Neeraj)
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SOLUTION
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Glad to help.
In the column where you calcuate the difference you need to add a if statement to ensure the fileds are populated.
If you do this you will not get the #value and the average will work.
If you do not know how to do this I will help , just ask

Kind regards
Eric